I usually don't Smoke parts (I've done whole birds). I just did some (parts) in the WSM direct Heat at about 350 lid temp. Took 50 mins. Skin was tough so, I should have (according to some help I got on this board) taken the rack and placed it directly on top of the charcoal ring for a few minutes to crisp the skin. But, to answer your question, at that temp I would GUESS 1 - 1.5 hrs.
I filled my whole top grate about 2 weeks ago with about 275 or 300 lid, and did 1.5 hours. I then lit my grill on high, sauced the wings, grilled, re sauced and re grilled. These are referred to as "dirty wings"
I do my wings around 350 mark for 1 hour total time but I flip them every 20 minutes for 3 times total. Then sauce after, come out all nice and crispy not tough at all. Your smaller ones may dry out but if there pretty much uniform in size you shouldn't have no trouble whats so ever.
